5. When starting UltraVNC SC on the Win7 PC if you get the "This program might not have installed correctly" dialog box, simply select the "The program installed correctly" option (and tick 'do not display again' if you wish to avoid being asked every time).

6. I wasted a lot of time trying to get Vinagre to work, ssvnc worked perfectly. Start ssvnc, choose options, select 'No Encryption', select 'Reverse VNC Connection', then click on 'Listen'. The 'listening window' will now be displayed - at this point the connection can be initiated from the Win7 PC using UltraVNC SC.

7. Sample bare-bones helpdesk.txt file for uploading in a zip to the SC creator page, nothing else is required in the zip. Obviously the IP address must be entered. whatismyipaddress.com will tell you the IP address for the Linux PC.